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1B86 GM tube

Size
This valve measures 88x9mm overall and has a 3 lead base

Threshold voltage275V
Min plateau length *50V
Plateau slope *30%/50V
Recovery time100µsec
Background (Vo=300V)30counts/minute
Life5x107 counts
Electrode capacitance1pF
Anode active length2.5 inches
Operating voltage300V
Ambient temperature-40° min, 100° max
Humidity100% max

*: for a new tube

The outer two leads are the cathode, the centre lead the anode.

1B86

Information supplied by Michael Emerson


This file was last modified10:52:40, Sunday April 16, 2017